Thumbnail of product Flex from brand Fitbit
Logo of brand Fitbit

SmartWatch Fitbit Flex

Fitbit
Phones
SmartWatch

The Fitbit Flex is a stylish and functional smartwatch designed to accompany you in your daily life. With its modern black design, this connected bracelet is made from durable materials such as stainless steel and thermoplastic elastomer, offering both style and robustness.

Water-resistant up to 10 meters, it is ideal for use during water activities. The Fitbit Flex is equipped with an LED screen that clearly displays your activity tracking data, including the number of steps taken, calories burned, and distance traveled. Thanks to its built-in accelerometer, it helps you stay active throughout the day.

Wireless connectivity via Bluetooth 4.0 allows you to easily sync your data with compatible devices, including Android and iOS. Additionally, the Fitbit Flex has a battery life of 5 days, enabling you to enjoy its features without interruption.

With a lightweight design and compact dimensions, the Fitbit Flex is made for comfortable wear throughout the day. It is also splash-resistant and suitable for various environments, ensuring reliable use regardless of the conditions.

In summary, the Fitbit Flex is an ideal connected bracelet for those looking to track their physical activity and improve their sleep quality, all while enjoying a stylish and functional design.

Manuals of product Flex

First page image of the manual for Flex

User Manual
40 pages
View manual
First page image of the manual for Flex

Measuring Guide
1 page
View manual
8 10

Editorial note

The Fitbit Flex stands out with its modern and sleek design, featuring a construction of stainless steel and thermoplastic elastomer, offering durability and sophistication. Its lightweight, with a width of only 13.99 mm, allows for comfortable wear throughout the day. Additionally, the waterproofing up to 10 meters is a major asset for active users, enabling them to use it worry-free during water activities or in rainy weather. The 5-day battery life and the quick 2-hour charging time are also positive points, ensuring prolonged use without the need for frequent recharges. The Bluetooth 4.0 connectivity provides a reliable connection with other devices, facilitating the tracking of health and activity data. However, some aspects may disappoint. The lack of a touchscreen makes interaction with the device less intuitive than that of some modern competitors. Furthermore, while the battery life is reasonable, it may not be sufficient for intensive users. The design, although appealing, offers few customization options, and the absence of advanced features such as call or message notifications could frustrate users seeking a more connected device. Finally, the Bluetooth 4.0 connectivity, while functional, may seem outdated compared to newer models. In summary, the Fitbit Flex is a good choice for those looking for a stylish and functional fitness tracker, but it may not satisfy users seeking more advanced features.

Score details

User experience

The user experience is generally positive, although the lack of a touchscreen may make interaction less intuitive and convenient.

Performance

The performance is adequate for daily use, but the battery life may not be sufficient for heavy users.

Battery life

The battery life is 5 days with a charging time of only 2 hours, providing extended use without frequent recharging.

Design

The modern and sleek design of the Fitbit Flex, with durable materials, makes it a versatile accessory, although customization is limited.

Value for money

The value for money is satisfactory, but the lack of advanced features like call notifications may disappoint some users.

connectivity

The Bluetooth 4.0 connectivity is effective, but may seem outdated compared to other models using newer versions.

Advantages

Lightweight and compact, easy to carry

Modern and elegant design, durable materials

Waterproof up to 10 meters

Fast Bluetooth 4.0 connectivity

5-day battery life, fast charging

Disadvantages

No touchscreen, less convenient

Insufficient battery life for heavy users

Limited design customization

Lack of call and message notifications

Outdated Bluetooth 4.0 connectivity

Technical Specifications Flex

General Information

Weight and dimensions

  • Width
    13.99 mm
  • Weight
    - g

Design

  • Color of the strap
    Black
  • Device type
    Connected bracelet
  • Material of the case/body
    Stainless steel, Thermoplastic elastomer (TPE)
  • Color of the strap
    Black
  • Humidity: waterproof up to
    10 m
  • Splash resistant
    Yes
  • Splash resistant
    Yes
  • Certification
    FCC, CE, R&TTE
  • Splash resistant
    Yes

Representation / realization

  • Touch screen
    No
  • Screen type
    LED

Other features

  • Connectivity technology
    Wireless
  • Supported browsers
    Chrome, Firefox, Internet Explorer, Safari

Connectivity

  • Bluetooth
    Yes
  • Bluetooth model
    4.0

Minimum system requirements

  • Supported mobile system
    Android, iOS
  • Support for the Windows operating system
  • Support for the Mac operating system
    Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
  • Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks

Power

  • Battery life
    5 day(s)
  • Battery technology
    Lithium Polymer (LiPo)
  • Loading source
    USB
  • Charging time
    2 h

Environmental conditions

  • Operating temperature
    -20 - 45 °C
  • Temperature out of operation
    -30 - 60 °C
  • Operating altitude
    0 - 9144 m

Packaging contents

  • Cables included
    USB
  • User manual
    Yes
  • Number of included bands
    1
  • User manual
    Yes

Features

  • Alarm
    Yes
  • Alarm
    Yes
  • Alarm
    Yes
  • Alarm
    Yes
  • Alarm
    Yes
  • Alarm
    Yes
  • Alarm
    Yes
  • Alarm
    Yes
  • Memory capacity
    30 day(s)

Frequently Asked Questions

What is the weight of the Fitbit Flex?
The weight of the Fitbit Flex is 968 grams.
Does a smartwatch have functions that are absent on a smartphone?
Generally, a smartwatch does not offer features that are not present on a smartphone.
Is it necessary to turn off my SmartWatch at night?
It is recommended to turn off your SmartWatch at night to extend battery life.
Is it essential to have the Internet to use GPS?
No, it is not necessary to have an Internet connection to use GPS.
What does the acronym GPS stand for?
The acronym GPS stands for "Global Positioning System."
What is GPS?
GPS is a system that allows you to determine your position anywhere in the world using satellites.
What is Bluetooth?
Bluetooth allows for the wireless transmission of data between electronic devices via radio waves, typically over a distance of up to ten meters.
What are the certifications of the Fitbit Flex?
The Fitbit Flex has the following certifications: FCC, CE, and R&TTE.
What is the width of the Fitbit Flex?
The Fitbit Flex is 13.99 mm wide.
Is the Fitbit Flex manual available in French?
Yes, the Fitbit Flex manual is available in French.

Similar products

MyKronoz ZeTime Premium
1
MyKronoz Phones SmartWatch
Thumbnail of product MyKronoz ZeTime Premium
Discover the technical sheet of ZeTime Premium from MyKronoz and its manuals...
Available manuals:

Sony SmartBand SWR10
1
Sony Phones SmartWatch
Thumbnail of product Sony SmartBand SWR10
Discover the technical sheet of SmartBand SWR10 from Sony and its manuals...
Available manuals:

Fitbit Charge 3
1
Fitbit Phones SmartWatch
Thumbnail of product Fitbit Charge 3
Discover the technical sheet of Charge 3 from Fitbit and its manuals...
Available manuals:

Acer Liquid Leap W1
1
Acer Phones SmartWatch
Thumbnail of product Acer Liquid Leap W1
Discover the technical sheet of Liquid Leap W1 from Acer and its manuals...
Available manuals:

Fitbit Versa 2
1
Fitbit Phones SmartWatch
Thumbnail of product Fitbit Versa 2
Discover the technical sheet of Versa 2 from Fitbit and its manuals...
Available manuals:

Alcatel One Touch Go Watch SM-03
1
Alcatel Phones SmartWatch
Thumbnail of product Alcatel One Touch Go Watch SM-03
Discover the technical sheet of One Touch Go Watch SM-03 from Alcatel and its manuals...
Available manuals:

Fitbit Blaze
1
Fitbit Phones SmartWatch
Thumbnail of product Fitbit Blaze
Discover the technical sheet of Blaze from Fitbit and its manuals...
Available manuals:

Fitbit Alta
1
Fitbit Phones SmartWatch
Thumbnail of product Fitbit Alta
Discover the technical sheet of Alta from Fitbit and its manuals...
Available manuals:

Samsung Gear S2
3
Samsung Phones SmartWatch
Thumbnail of product Samsung Gear S2
Discover the technical sheet of Gear S2 from Samsung and its manuals...
Available manuals:

Fitbit Versa
1
Fitbit Phones SmartWatch
Thumbnail of product Fitbit Versa
Discover the technical sheet of Versa from Fitbit and its manuals...
Available manuals:

Samsung Gear S2 Classic
3
Samsung Phones SmartWatch
Thumbnail of product Samsung Gear S2 Classic
Discover the technical sheet of Gear S2 Classic from Samsung and its manuals...
Available manuals:

Fitbit Versa Lite
1
Fitbit Phones SmartWatch
Thumbnail of product Fitbit Versa Lite
Discover the technical sheet of Versa Lite from Fitbit and its manuals...
Available manuals:

More product categories from brand Fitbit

More product types from brand Fitbit

Presentation of product Flex specifications from brand Fitbit

General Information

The Fitbit Flex, developed by the renowned brand Fitbit, is a connected bracelet model Flex | FB401BK-EU. Known for its commitment to quality and innovation, Fitbit offers an optimized user experience with this model. The product is identified by several EAN codes, making it easier to track in distribution systems.

Weight and Dimensions

With a width of 13.99 mm, the Fitbit Flex is designed to easily blend into your daily life. Its lightweight allows for prolonged use without discomfort, making the bracelet pleasant to wear throughout the day.

Design

The Fitbit Flex features a Black color, giving it a modern and elegant style. Made from durable materials such as stainless steel and thermoplastic elastomer, it combines robustness and aesthetics. Additionally, its waterproof design up to 10 meters ensures effective protection against water, making it a wise choice for aquatic activities. The bracelet is equipped with indicators to show its operational status and meets certification standards such as FCC, CE, and R&TTE.

Display

The Fitbit Flex does not have a touchscreen, but it is equipped with a LED display that offers clear visibility for essential information, thus ensuring a satisfactory user experience.

Connectivity

This model integrates Wireless connectivity technology, allowing for use without the constraints of cables. It is compatible with browsers such as Chrome, Firefox, Internet Explorer, and Safari, ensuring smooth access to compatible platforms. The Bluetooth 4.0 facilitates a quick and efficient connection with other devices, although some users may consider this version to be less modern compared to other available options.

Minimum System Requirements

The Fitbit Flex is compatible with Android and iOS mobile systems, allowing for seamless integration on major platforms. It also supports several versions of Windows and Mac OS X, ensuring a smooth user experience across various devices.

Power

With a battery life of 5 days, the Fitbit Flex allows you to enjoy its features without frequent recharging. Its nickel-metal hybrid battery (NiMH) ensures reliable performance, and it easily recharges via a USB port, with a charging time of about 2 hours.

Environmental Conditions

The Fitbit Flex operates within a temperature range of -20 to 45 °C and can withstand extreme conditions ranging from -30 to 60 °C when not in operation. It is also capable of functioning at altitudes of up to 9144 m, making it a versatile device suitable for different environments.

Package Contents

The Fitbit Flex comes with a charging cable, a receiver to maximize its features, and a single band suitable for its use. A user manual is also included to guide users in the optimal setup and operation of the device.

Features

Equipped with an accelerometer, the Fitbit Flex measures movements and helps track active minutes, calories burned, distance traveled, as well as hours and quality of sleep. An integrated pedometer allows you to count your steps throughout the day. Additionally, a wake-up function with a customizable alarm is available, and its memory capacity allows for data storage for 30 days, facilitating detailed tracking of your physical activity.